Solar tube emptying antifreezing valve

Abstract

The invention relates to a solar tube emptying antifreezing valve, which is used for the emptying and the antifreezing of the water feeding tube and the water discharging tube of a solar water heater. The solar tube emptying antifreezing valve is formed by a valve body, a water inlet tube, a water outlet tube, a soft emptying air inlet tube, a hard emptying air inlet tube, a floating ball, an electromagnet, a connecting rod and a sealing gasket. The valve body is installed through a special interface reserved on a solar water tank. The valve body is directly sealed with a sealing ring of the interface reserved on the water tank. The sealing gasket is arranged at one end of the water inlet tube and the water outlet tube of the valve. The sealing gasket can close or conduct the water inlet tube and the water outlet tube of the valve through the control of the electromagnet, and the emptying and the antifreezing of the water feeding tube and the water discharging tube of the solar water heater are realized in combination with the conduction of the air inlet tube. Since the water inlet tube and the water outlet tube on the valve body and the sealing gasket are arranged in the water tank, the valve can empty not only the water feeding tube and the water discharging tube of the solar water heater but also the valve chamber of the valve, so the thorough emptying and antifreezing of the solar tubes is genuinely realized.

Description

technical field [0001] The invention relates to a valve used for emptying and antifreezing of solar water heater pipelines. In particular, it is a valve capable of emptying the water inlet and outlet pipes and the upper and lower water pipes between the outer shell of the solar water tank and the inner tank. Background technique [0002] At present, solar water heaters have been used more and more because of their remarkable energy-saving and environmental protection characteristics. However, in the process of use, especially when the temperature is low, the outdoor pipes often cause freezing and blockage of the outdoor water pipes when the temperature is low due to water, which not only causes waste of water resources, but also seriously affects the performance of solar water heaters. Normal use. In order to solve the above problems, there are mainly the following three methods: 1, adopting a pipeline heating belt; 2, adopting an electronic emptying valve; 3, adopting a s...

AI Technical Summary

Problems solved by technology

But above-mentioned various methods have also produced a lot of problems in the use process, and electric heating cable is unsafe, easily causes fire and personal electric shock accident, and its energy consumption height, life-span are short; The effect is very general, and it is difficult to promote the application due to installation restrictions

In the prior art, there is a patent No. ZL01237499.7 for gas introduction type evacuation, which requires three quick-opening valves to realize pipeline evacuation. Although this method of evacuation is reliable, the process of use is very complicated and difficult to master. And the three quick-opening valves are vulnerable parts, which is not conducive to popularization

There is also a ceramic sealed emptying three-way valve with a patent number of ZL01261313.4. Although it can empty the solar energy upper and lower water pipes, because its water stop is outside the solar water tank, the water inlet and outlet pipes between the water tank shell and the inner tank There is still water between the three-way valve and the emptying three-way valve. When the temperature is below zero, the water in this section is easily frozen, causing the water in the water tank to not flow out, and it is difficult to completely empty and prevent freezing.

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